Allylic
烯丙基的
🗣️ 情景例句
Uh--hold it. Old Country Inn?
嗯 ，等一等。Old Country Inn？
The Senator acceded to his defeat before the end of the election.
那位参议员在选举结束以前就承认落选了。
Why don't you hire a car and drive around for a couple of weeks?
你为什么不租部车四处转上一两个星期呢？